fix: no matching conversion from 'int' to 'T'

pytorch3d/csrc/pulsar/include/camera.device.h

@@ -20,6 +20,13 @@ IHD CamGradInfo::CamGradInfo() {
   pixel_dir_x = make_float3(0.f, 0.f, 0.f);
   pixel_dir_y = make_float3(0.f, 0.f, 0.f);
 }
+
+IHD CamGradInfo::CamGradInfo(float val) {
+  cam_pos = make_float3(val, val, val);
+  pixel_0_0_center = make_float3(val, val, val);
+  pixel_dir_x = make_float3(val, val, val);
+  pixel_dir_y = make_float3(val, val, val);
+}
 } // namespace pulsar
 
 #endif

pytorch3d/csrc/pulsar/include/camera.h

@@ -64,6 +64,7 @@ inline bool operator==(const CamInfo& a, const CamInfo& b) {
 
 struct CamGradInfo {
   HOST DEVICE CamGradInfo();
+  HOST DEVICE CamGradInfo(float val);
   float3 cam_pos;
   float3 pixel_0_0_center;
   float3 pixel_dir_x;
@@ -72,6 +73,8 @@ struct CamGradInfo {
 
 // TODO: remove once https://github.com/NVlabs/cub/issues/172 is resolved.
 struct IntWrapper {
+  HOST DEVICE IntWrapper(){}
+  HOST DEVICE explicit IntWrapper(int ival):val{0}{}  
   int val;
 };